Penumbra - Black Box + black screen

[Krayban]

Hello, I'd like to play Penumbra but i can't. When i try to run Black Plague, I can only run the menu, when I start the new game, I can only watch the intro, then game crashes with Black Box

Here's screenshot

http://imageshack.us/g/571/43838749.jpg/

My graphics card is HD 7850 and I have the newest drivers. Win 7 64-bit. I installed 1.1 patch but it didn't help.

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I have other problem with Penumbra Overture. I can start a new game. Everything goes well, to the place where we find the first dog. My screen goes black, when I go to the menu then return to the game, the screen works for 2 seconds, then it goes black again. I have no idea what's going on.

I hope you help me